FEATURES High Efficiency: 94% @ 12Vin, 5V/60A out Wide input range: 4.5V~13.8V Output voltage programmable from 0.6Vdc to 5Vdc via external resistors No minimum load required Fixed frequency operation Input UVLO, output OCP, OVP. Remote On/Off (Positive logic) Power Good Function RoHs completed ISO 9001, TL 9000, ISO 14001, QS9000, OHSAS18001 certified manufacturing facility Delphi D12S300-1 D/E Non-Isolated Point of Load DC/DC Modules: 4.5V~13.8Vin, 0.6V~5Vout, 60A The D12S300-1 series, 4.5~13.8V input, single output, non-isolated point of load DC/DC converters are the latest offering from a world leader in power systems technology and manufacturing -- Delta Electronics, Inc. The D12S300-1 series product provides up to 60A and the output can be resistor trimmed from 0.6Vdc to 5Vdc. It provides a very cost effective point of load solution. With creative design technology and optimization of component placement, these converters possess outstanding electrical and thermal performance, as well as extremely high reliability under highly stressful operating conditions. The D12S300-1 series is a voltage mode controlled Buck topology. The APPLICATIONS output can be trimmed in the range of 0.6Vdc to 5Vdc by an external Telecom/DataCom resistor from Trim pin to Ground. The converter can be turned ON/OFF Distributed power architectures by remote control with positive on/off (ENABLE pin) logic. The Servers and workstations converter DC output is disabled when the signal is driven low. When LAN/WAN applications Data processing applications this pin is floating the module will turn on. The converter can protect itself by entering hiccup mode against over current and short circuit condition. Also, the converter will shut down when an over voltage protection is detected. DATASHEET DS_D12S300-1_11012013 TECHNICAL SPECIFICATIONS (Ambient Temperature=25°C, minimum airflow=100LFM, nominal Vin=12Vdc unless otherwise specified.) PARAMETER NOTES and CONDITIONS D12S300-1 Min. ABSOLUTE MAXIMUM RATINGS Input Voltage Operating Temperature Storage Temperature INPUT CHARACTERISTICS Operating Input Voltage Input Under-Voltage Lockout Turn-On Voltage Threshold Turn-Off Voltage Threshold Lockout Hysteresis Voltage Maximum Input Current No-Load Input Current Off Converter Input Current Input Reflected-Ripple Current Input Voltage Ripple Rejection Output Short-Circuit Input Current OUTPUT CHARACTERISTICS Output Voltage Adjustment Range Output Voltage Set Point Output Voltage Regulation Over Load Over Line Total output range Output Voltage Ripple and Noise Peak-to-Peak RMS Output Current Range Output Voltage Under-shoot at Power-Off Output short-circuit current, RMS value Output DC Current-Limit Inception Over Voltage Protection DYNAMIC CHARACTERISTICS Output Dynamic Load Response Transient Response Transient Response Transient Response Transient Response Transient Response Transient Response Transient Response Transient Response Settling Time Turn-On Transient Rise Time Turn-on Delay (Power) Turn-on Delay (Remote on/off) ) Turn on & turn off Transient (overshoot) Minimum Output Capacitance EFFICIENCY Vo=0.6V Vo=0.9V Vo=1.2V Vo=1.5V Vo=1.8V Vo=2.5V Vo=3.3V Vo=5.0V SINK EFFICIENCY Vo=5.0V FEATURE CHARACTERISTICS Switching Frequency ON/OFF Control Logic High Logic Low Remote Sense Range Power Good Output to Power Good Delay Time GENERAL SPECIFICATIONS Calculated MTBF Weight Over-Temperature Shutdown Continuous Refer to Fig.32 for the measuring point Max. Units -0.3 0 -40 13.8 70 125 Vdc °C °C 4.5 13.8 Vdc 28 600 30 Vdc Vdc V A mA mA mA dB mA 5.0 +0.8 V %Vo +0.5 +0.2 %Vo %Vo +1.5 %Vo 50 15 60 100 Without adjust resistor (Ren) Without adjust resistor (Ren) Typ. 4.38 3.88 0.4 Vin=12V, Vout=5V, Io=60A Vin=12V, Vout=5V, Io=0A Remote OFF,Vin=12V P-P thru 2uH inductor 5Hz to 20MHz 120Hz Vin=12V, Vout=5V 530 24 30 50 160 0.6 -0.8 With a 0.1% trim resistor, measured at remote sense pin. Io=Io_min to Io_max, measured at remote sense pin. Vin=Vin_min to Vin_max, measured at remote sense pin. Over load, line, temperature regulation and set point, measured at remote sense pin. 5Hz to 20MHz bandwidth Full Load, 20uF Tan cap&1uF ceramic, total input & output range Full Load, 10uF Tan cap&1uF ceramic, total input & output range -0.5 -0.2 0.1 0.1 -1.5 20 8 125 180 130 mV mV A mV A % % 110 120 120 120 100 100 100 100 20 160 170 170 170 150 150 150 150 60 mV pk mV pk mV pk mV pk mV pk mV pk mV pk mV pk µs 1 4 0.4 0.5% 2 10 2 ms ms ms Vo µF 0 Vin=12V, Turn OFF 12Vin, 5Vout Hiccup mode Hiccup mode 10 110 120 12Vin, 1uF ceramic, 10uF Tan cap Output step load=25% load for all range Slew rate=10A/µs Output step load=25% load for all range Slew rate=10A/µs Output step load=25% load for all range Slew rate=10A/µs Output step load=25% load for all range Slew rate=10A/µs Output step load=25% load for all range Slew rate=10A/µs Output step load=25% load for all range Slew rate=10A/µs Output step load=25% load for all range Slew rate=10A/µs Output step load=25% load for all range Slew rate=10A/µs 0.6 Vo 0.9 Vo 1.2 Vo 1.5 Vo 1.8 Vo 2.5Vo 3.3 Vo 5.0 Vo From 10% to 90% of Vo Vin=12V, Io=min-max. (within 10% of Vo) Vin=12V, Io=min-max. (within 10% of Vo) ESR≥ 1mΩ 0 Vin=12V, Io=60A Vin=12V, Io=60A Vin=12V, Io=60A Vin=12V, Io=60A Vin=12V, Io=60A Vin=12V, Io=60A Vin=12V, Io=60A Vin=12V, Io=60A 76 81 84 86 88 90 91 92 5000 78 83 86.5 88.5 90.0 92.1 93.4 94.5 % % % % % % % % Vin=12V, Io=60A 93 % Fixed, Per phanse Positive logic (internally pulled high) Module On (or leave the pin open) Module Off 500 KHz 1.5 -0.3 Vo is out off +/-10% Vo Vo is within +/-10% Vo 0 4.0 0.1 25℃, 300LFM, 80% load Refer to Figure 32 for the measuring point TBD 26.5 115 4.1 1.4 0.5 0.4 5.1 2 V V V V V ms Mhours grams °C DS_D12S300-1_11012013 2 ELECTRICAL CHARACTERISTICS CURVES 100 100 5Vin 12Vin 13.8Vin 5Vin 95 Efficiency (%) Effi ciency (%) 95 90 85 80 75 90 85 80 70 0 10 20 30 40 50 60 0 10 Output Current, Io (A) Figure 1: Converter efficiency vs. output current (0.9V output voltage, 5V&12V input) 20 30 40 50 Output Current, Io (A) 60 Figure 2: Converter efficiency vs. output current (1.2V output voltage, 5V&12V input) 100 100 5Vin 12Vin 13.8Vin 95 Efficiency (%) 95 Efficiency (%) 13.8Vin 75 70 90 85 80 90 85 80 75 75 70 70 0 10 20 30 40 50 Output Current, Io (A) 95 Efficiency (%) 95 90 85 80 12Vin 20 30 40 13.8Vin 50 60 Figure 4: Converter efficiency vs. output current (2.5V output voltage, 5V&12V input) 100 7Vin 10 12Vin Output Current, Io (A) 100 75 5Vin 0 60 Figure 3: Converter efficiency vs. output current (1.8V output voltage, 5V&12V input) Efficiency (%) 12Vin 90 85 80 9Vin 75 13.8Vin 12Vin 13.8Vin 70 70 0 10 20 30 40 50 Output Current, Io (A) Figure 5: Converter efficiency vs. output current (3.3V output voltage, 12V input) 60 0 10 20 30 40 50 60 Output Current, Io (A) Figure 6: Converter efficiency vs. output current (5.0V output voltage, 12V input) DS_D12S300-1_11012013 3 ELECTRICAL CHARACTERISTICS CURVES (CON.) Figure 7: Output ripple & noise at 12Vin, 0.9V/60A out (5mv/div, 1uS/div) Figure 8: Output ripple & noise at 12Vin, 1.2V/60A out (5mv/div, 1uS/div) Figure 9: Output ripple & noise at 12Vin, 1.8V/60A out (5mv/div, 1uS/div) Figure 10: Output ripple & noise at 12Vin, 2.5V/60A out (5mv/div, 1uS/div) Figure 11: Output ripple & noise at 12Vin, 3.3V/60A out (10mv/div, 1uS/div) Figure 12: Output ripple & noise at 12Vin, 5.0V/60A out (10mv/div, 1uS/div) DS_D12S300-1_11012013 4 ELECTRICAL CHARACTERISTICS CURVES (CON.) Figure 13: Turn on delay time at 12Vin, 0.9V/60A out (500uS/div) Ch2: Vo, Ch3: Enable, Ch4:PG Figure 14: Turn on delay time at 12Vin, 1.2V/60A out (500uS/div) Ch2: Vo, Ch3: Enable, Ch4:PG Figure 15: Turn on delay time at 12Vin, 1.5V/60A out (500uS/div) Ch2: Vo, Ch3: Enable, Ch4:PG Figure 16: Turn on delay time at 12Vin, 1.8V/60A out (500uS/div) Ch2: Vo, Ch3: Enable, Ch4:PG Figure 17: Turn on delay time at 12Vin, 2.5V/60A out (500uS/div) Ch2: Vo, Ch3: Enable, Ch4:PG Figure 18: Turn on delay time at 12Vin, 3.3V/60A out (500uS/div) Ch2: Vo, Ch3: Enable, Ch4:PG DS_D12S300-1_11012013 5 Figure 19: Typical transient response to step load change at 10A/μS from 50%to 100% and 100% to 50 of Io, max at 12Vin, 0.9V out (0.100V/div) Figure 20: Typical transient response to step load change at 10A/μS from 50%to 100% and 100% to 50 of Io, max at 12Vin, 1.2V out (0.100V/div) Figure 21: Typical transient response to step load change at 10A/μS from 50%to 100% and 100% to 50 of Io, max at 12Vin, 1.8V out (0.100V/div) Figure 22: Typical transient response to step load change at 10A/μS from 50%to 100% and 100% to 50 of Io, max at 12Vin, 2.5V out (0.100V/div) Figure 23: Typical transient response to step load change at 10A/μS from 50%to 100% and 100% to 50 of Io, max at 12Vin, 3.3V out (0.100V/div) Figure 24: Typical transient response to step load change at 10A/μS from 50%to 100% and 100% to 50 of Io, max at 12Vin, 5.0V out (0.100V/div) DS_D12S300-1_11012013 6 DESIGN CONSIDERATIONS FEATURES DESCRIPTIONS The D12S300-1 uses a three phase and voltage mode controlled buck topology. The output can be trimmed in the range of 0.6Vdc to 5Vdc by a resistor from Trim pin to Ground. Enable (On/Off) The converter can be turned ON/OFF by remote control. Positive on/off (ENABLE pin) logic implies that the converter DC output is enabled when the signal is driven high (greater than 1.2V) or floating and disabled when the signal is driven low (below 0.7V). Negative on/off logic is optional. The converter provides an open collector Power Good signal. The power good signal is pulled low when output is not within ±10% of Vout or Enable is OFF. The converter can protect itself by entering hiccup mode against over current and short circuit condition. Safety Considerations The ENABLE (on/off) input allows external circuitry to put the D12S300-1 converter into a low power dissipation (sleep) mode. Positive ENABLE is available as standard. Positive ENABLE units of the D12S300-1 series are turned on if the ENABLE pin is high or floating. Pulling the pin low will turn off the unit. With the active high function, the output is guaranteed to turn on if the ENABLE pin is driven above 1.2V. The output will turn off if the ENABLE pin voltage is pulled below 0.7V. The ENABLE input can be driven in a variety of ways as shown in Figures 25 and 26. If the ENABLE signal comes from the primary side of the circuit, the ENABLE can be driven through either a bipolar signal transistor (Figure 25). If the enable signal comes from the secondary side, then an opto-coupler or other isolation devices must be used to bring the signal across the voltage isolation (please see Figure 26). It is recommended that the user to provide a fuse in the input line for safety. The output voltage set-point and the output current in the application could define the amperage rating of the fuse. Unit Vin Vout Enable Trim GND GND Figure 25: Enable Input drive circuit for D12S300-1 series Unit Vin Vout Enable Trim(+) GND GND Ren Figure 26: Enable input drive circuit example with isolation. DS_D12S300-1_11012013 7 FEATURES DESCRIPTIONS (CON.) Input Under-Voltage Lockout Output Voltage Programming The input under-voltage lockout prevents the converter from being damaged while operating when the input voltage is too low. The lockout occurs between 4.1V to 4.5V. The output voltage of the NE series is trimmable by connecting an external resistor between the trim pin and output ground as shown Figure 28 and the typical trim resistor values are shown in Table 1. Over-Current and Short-Circuit Protection Unit The D12S300-1 series modules have non-latching over-current and short-circuit protection circuitry. When over current condition occurs, the module goes into the non-latching hiccup mode. When the over-current condition is removed, the module will resume normal operation. Vin Vout Enable Trim(+) Rtrim An over current condition is detected by measuring the voltage drop across the inductor. The voltage drop across the inductor is also a function of the inductor’s DCR. GND Trim(-) Figure 28: Trimming Output Voltage Note that none of the module specifications are guaranteed when the unit is operated in an over-current condition. Remote Sense The D12S300-1 provides Vo remote sensing to achieve proper regulation at the load points and reduce effects of distribution losses on output line. In the event of an open remote sense line, the module shall maintain local sense regulation through an internal resistor. The module shall correct for a total of 0.6V of loss. The remote sense connects as shown in Figures 27. The D12S300-1 module has a trim range of 0.6V to 5V. The trim resistor equation for the D12S300-1 is: Rs () 1200 Vout 0.6 Vout is the output voltage setpoint Rs is the resistance between Trim and Ground Rs values should not be less than 270Ω Output Voltage Rs (Ω) 0.6V +0.9V +1.2V +1.5 V +1.8V +2.5 V +3.3 V +5.0V open 4K 2K 1.33K 1K 631.6 444.4 272.7 Table 1: Typical trim resistor values Power Good Figure 27 : Circuit configuration for remote sense The converter provides an open collector signal called Power Good. This output pin uses positive logic and is open collector. This power good output is able to sink 5mA and set high when the output is within ±10% of output set point. The power good signal is pulled low when output is not within ±10% of Vout or Enable is OFF. DS_D12S300-1_11012013 8 FEATURES DESCRIPTIONS (CON.) Current Sharing (optional) The parallel operation of multiple converters is available with the D12S300-1 E. The converters will current share to be within +/- 10% of each other. In additional to connect the I-Share pin together for the current sharing operation, the remote sense lines of the paralleled units must be connected at the same point for proper operation. Also, units should be turned on/off by enable at the same time. Hot plugging is not recommended. The current sharing diagram show in figure 29. Voltage Margining Adjustment Output voltage margin adjusting can be implemented in the ND modules by connecting a resistor, Rmargin-up, from the Trim pin to the Ground for margining up the output voltage. Also, the output voltage can be adjusted lower by connecting a resistor, Rmargin-down, from the Trim pin to the voltage source Vt. Figure 30 shows the circuit configuration for output voltage margining adjustment. Figure 30: Circuit configuration for output voltage margining Output Capacitance There are internal output capacitors on the D12S300-1 series modules. Hence, no external output capacitor is required for stable operation. Reflected Ripple Current and Output Ripple and Noise Measurement The measurement set-up outlined in Figure 31 has been used for both input reflected/ terminal ripple current and output voltage ripple and noise measurements on D12S300-1 series converters. Input reflected current measurement point Ltest DC-DC Converter Vin+ Cs Figure 29: Current sharing diagram Cin Load 1uF Ceramic 10uF Tan Output voltage ripple noise measurement point Cs=330μF OS-CON cap x 1, Ltest=1μH, Cin=330μF OS-CON cap x 1 Figure 31: Input reflected ripple/ capacitor ripple current and output voltage ripple and noise measurement setup for D12S300-1 DS_D12S300-1_11012013 9 THERMAL CONSIDERATION THERMAL CURVES (D12S300-1) Thermal management is an important part of the system design. To ensure proper, reliable operation, sufficient cooling of the power module is needed over the entire temperature range of the module. Convection cooling is usually the dominant mode of heat transfer. Hence, the choice of equipment to characterize the thermal performance of the power module is a wind tunnel. Thermal Testing Setup Delta’s DC/DC power modules are characterized in heated vertical wind tunnels that simulate the thermal environments encountered in most electronics equipment. This type of equipment commonly uses vertically mounted circuit cards in cabinet racks in which the power modules are mounted. The following figure shows the wind tunnel characterization setup. The power module is mounted on a test PWB and is vertically positioned within the wind tunnel. The space between the neighboring PWB and the top of the power module is constantly kept at 6.35mm (0.25’’). Figure 33: Temperature measurement location* The allowed maximum hot spot temperature is defined at 115℃ D12S300 A_S0 Output Current vs. Ambient Temperature and Air Velocity @ Vin =12V, Vout =0.9V (Worse Orientation) Output Current (A) 70 60 50 100LFM 40 200LFM 30 300LFM Thermal Derating 500LFM 20 Heat can be removed by increasing airflow over the module. To enhance system reliability, the power module should always be operated below the maximum operating temperature. If the temperature exceeds the maximum module temperature, reliability of the unit may be affected. PWB FACING PWB MODULE 400LFM 600LFM 10 0 25 35 45 55 65 75 85 Ambient Temperature (℃) Figure 34: Output current vs. ambient temperature and air velocity @Vin=12V, Vout=0.9V (Worse Orientation) D12S300 A_S0 Output Current vs. Ambient Temperature and Air Velocity @ Vin =12V, Vout =1.2V (Worse Orientation) Output Current (A) 70 60 50 100LFM 40 AIR VELOCITY AND AMBIENT TEMPERATURE MEASURED BELOW THE MODULE 200LFM 30 50.8 (2.0”) AIR FLOW 300LFM 500LFM 400LFM 600LFM 20 10 0 25 12.7 (0.5”) Note: Wind Tunnel Test Setup Figure Dimensions are in millimeters and (Inches) 35 45 55 65 75 85 Ambient Temperature (℃) Figure 35: Output current vs. ambient temperature and air velocity@ Vin=12V, Vout=1.2V (Worse Orientation) Figure 32: Wind tunnel test setup DS_D12S300-1_11012013 10 THERMAL CURVES (D12S300-1) D12S300 A_S0 Output Current vs. Ambient Temperature and Air Velocity @ Vin =12V, Vout =3.3V(Worse Orientaion) D12S300 A_S0 Output Current vs. Ambient Temperature and Air Velocity @ Vin =12V, Vout =1.5V (Worse Orientation) Output Current (A) Output Current (A) 70 70 60 60 50 50 100LFM 100LFM 40 40 200LFM 200LFM 30 30 300LFM 500LFM 300LFM 500LFM 400LFM 600LFM 20 20 400LFM 600LFM 10 10 0 0 25 35 45 55 65 75 85 Ambient Temperature (℃) Figure 36: Output current vs. ambient temperature and air velocity@ Vin=12V, Vout=1.5V (Worse Orientation) 25 35 45 55 65 75 85 Ambient Temperature (℃) Figure 39: Output current vs. ambient temperature and air velocity@ Vin=12V, Vout=3.3V (Worse Orientation) D12S300 A_S0 Output Current vs. Ambient Temperature and Air Velocity @ Vin =12V, Vout =1.8V (Worse Orientation) D12S300 A_S0 Output Current vs. Ambient Temperature and Air Velocity @ Vin =12V, Vout =5V (Worse Orientation ) Output Current (A) Output Current (A) 70 70 60 60 50 50 100LFM 100LFM 40 40 200LFM 200LFM 30 30 500LFM 300LFM 300LFM 500LFM 400LFM 600LFM 20 20 600LFM 400LFM 10 10 0 0 25 35 45 55 65 75 85 Ambient Temperature (℃) Figure 37: Output current vs. ambient temperature and air velocity @Vin=12V, Vout=1.8V (Worse Orientation) 25 35 45 55 65 75 85 Ambient Temperature (℃) Figure 40: Output current vs. ambient temperature and air velocity@ Vin=12V, Vout=5V (Worse Orientation) D12S300 A_S0 Output Current vs. Ambient Temperature and Air Velocity @ Vin =12V, Vout =2.5V(Worse Orientation) Output Current (A) 70 60 50 100LFM 40 200LFM 30 300LFM 500LFM 400LFM 600LFM 20 10 0 25 35 45 55 65 75 85 Ambient Temperature (℃) Figure 38: Output current vs. ambient temperature and air velocity @Vin=12V, Vout=2.5V (Worse Orientation) DS_D12S300-1_11012013 11 MECHANICAL DRAWING VERTICAL DS_D12S300-1_11012013 12 PART NUMBERING SYSTEM D 12 S 300 -1 E Type of Product Input Voltage Number of Outputs Product Series Option Code D - DC/DC modules 4.5 - 12 -13.8V S - Single Output 300 - 60A 1 D- without current sharing 1 E- current sharing MODEL LIST Model Name Packaging Input Voltage Output Voltage Output Current Efficiency 12Vin, Max Vout @ 100% load D12S300-1 D Vertical 4.5 ~ 13.8Vdc 0.6 V~5.0Vdc 60A 94% D12S300-1 E Vertical 4.5 ~ 13.8Vdc 0.6 V~3.3Vdc 60A 92% CONTACT: www.deltaww.com/dcdc USA: Telephone: East Coast: 978-656-3993 West Coast: 510-668-5100 Fax: (978) 656 3964 Email: [email protected] Europe: Telephone: +31-20-655-0967 Fax: +31-20-655-0999 Email: [email protected] Asia & the rest of world: Telephone: +886 3 4526107 x 6220~6224 Fax: +886 3 4513485 Email: [email protected] WARRANTY Delta offers a two (2) year limited warranty. Complete warranty information is listed on our web site or is available upon request from Delta. Information furnished by Delta is believed to be accurate and reliable. However, no responsibility is assumed by Delta for its use, nor for any infringements of patents or other rights of third parties, which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of Delta. Delta reserves the right to revise these specifications at any time, without notice. DS_D12S300-1_11012013 13